Created
September 14, 2014 20:24
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bbca| 26fc BNE $bbc8 cc=80 a=0d b=01 dp=00 x=00b6 y=b39b u=82ec s=7f2a| E....... | $bbca: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbc8| 301f LEAX -1,X cc=80 a=0d b=01 dp=00 x=00b5 y=b39b u=82ec s=7f2a| E....... | $bbc8: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbca| 26fc BNE $bbc8 cc=80 a=0d b=01 dp=00 x=00b5 y=b39b u=82ec s=7f2a| E....... | $bbca: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbc8| 301f LEAX -1,X cc=80 a=0d b=01 dp=00 x=00b4 y=b39b u=82ec s=7f2a| E....... | $bbc8: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbca| 26fc BNE $bbc8 cc=80 a=0d b=01 dp=00 x=00b4 y=b39b u=82ec s=7f2a| E....... | $bbca: $bbc8-$bbcc - Decrements X until 0 then returns | |
fff8| 010c [IRQ] | $fff8: $fff8-$fff9 - IRQ ($010c) | |
010c| 7e9d3d JMP $9d3d cc=90 a=0d b=01 dp=00 x=00b4 y=b39b u=82ec s=7f1e| E..I.... | $10c: $10c-$10e - IRQ Secondary vector - JMP $9d3d (CoCo JMP $a9b3 or $894c (extended); CoCo DOS JMP $d7bc; SuperDos E6 JMP $c727) | |
9d3d| b6ff03 LDA $ff03 cc=98 a=b5 b=01 dp=00 x=00b4 y=b39b u=82ec s=7f1e| E..IN... | $9d3d: IRQ interrupt service routine | |
9d40| 2b01 BMI $9d43 cc=98 a=b5 b=01 dp=00 x=00b4 y=b39b u=82ec s=7f1e| E..IN... | $9d40: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
9d43| b6ff02 LDA $ff02 cc=94 a=00 b=01 dp=00 x=00b4 y=b39b u=82ec s=7f1e| E..I.Z.. | $9d43: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
9d46| be0112 LDX $0112 cc=90 a=00 b=01 dp=00 x=0002 y=b39b u=82ec s=7f1e| E..I.... | $9d46: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
9d49| 3001 LEAX 1,X cc=90 a=00 b=01 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.... | $9d49: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
9d4b| bf0112 STX $0112 cc=90 a=00 b=01 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.... | $9d4b: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
9d4e| 7eafd9 JMP $afd9 cc=90 a=00 b=01 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.... | $9d4e: $8000-$9fff - CoCo - Extended Color BASIC ROM | |
afd9| 4f CLRA cc=94 a=00 b=01 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.Z.. | $afd9: PLAY IRQ routine - branches to $bb02 if $00e3 == 0x0000 | |
afda| 1f8b TFR A,DP cc=94 a=00 b=01 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.Z.. | $afda: $a000-$bfff - CoCo - Color BASIC ROM | |
afdc| dce3 LDD <$e3 cc=94 a=00 b=00 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.Z.. | $afdc: $a000-$bfff - CoCo - Color BASIC ROM | |
afde| 10270b20 LBEQ $bb02 cc=94 a=00 b=00 dp=00 x=0003 y=b39b u=82ec s=7f1e| E..I.Z.. | $afde: $a000-$bfff - CoCo - Color BASIC ROM | |
bb02| be008d LDX $008d cc=94 a=00 b=00 dp=00 x=0000 y=b39b u=82ec s=7f1e| E..I.Z.. | $bb02: $bb02-$bb0c - Interrupt service subroutine to decrement $008d:008e, returns with RTI | |
bb05| 2705 BEQ $bb0c cc=94 a=00 b=00 dp=00 x=0000 y=b39b u=82ec s=7f1e| E..I.Z.. | $bb05: $bb02-$bb0c - Interrupt service subroutine to decrement $008d:008e, returns with RTI | |
bb0c| 3b RTI cc=80 a=0d b=01 dp=00 x=00b4 y=b39b u=82ec s=7f2a| E....... | $bb0c: $bb02-$bb0c - Interrupt service subroutine to decrement $008d:008e, returns with RTI | |
bbc8| 301f LEAX -1,X cc=80 a=0d b=01 dp=00 x=00b3 y=b39b u=82ec s=7f2a| E....... | $bbc8: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbca| 26fc BNE $bbc8 cc=80 a=0d b=01 dp=00 x=00b3 y=b39b u=82ec s=7f2a| E....... | $bbca: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbc8| 301f LEAX -1,X cc=80 a=0d b=01 dp=00 x=00b2 y=b39b u=82ec s=7f2a| E....... | $bbc8: $bbc8-$bbcc - Decrements X until 0 then returns | |
bbca| 26fc BNE $bbc8 cc=80 a=0d b=01 dp=00 x=00b2 y=b39b u=82ec s=7f2a| E....... | $bbca: $bbc8-$bbcc - Decrements X until 0 then returns | |
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